SAN MARCOS, CA—Just back from a business trip to the Midwest, Sonic Drive-In managerial trainer Joan Rupert expressed distaste for yet another city, basing her evaluation solely on the quality of its airport. "I hate Chicago," Rupert said Monday. "It's too spread-out, and there's no good shopping in any of the terminals. But I do have to admit that they have tons of super bars and restaurants. Where else but O'Hare can you buy a real Chicago hot dog?" Rupert said the only city worse than Chicago is Minneapolis, which is "always under construction."